Gratuitous

Part of speech: adjective (a.)

1. Given without an equivalent or recompense; conferred without valuable consideration; granted without pay, or without claim or merit; not required by justice. We mistake the gratuitous blessings of Heaven for the fruits of our own industry. L'Estrange.

2. Not called for by the circumstances; without reason, cause, or proof; adopted or asserted without any good ground; as, a gratuitous assumption. Acts of gratuitous self-humiliation. De Quincye. -- Gra*tu"i*tous*ly, adv. -- Gra*tu"i*tous*ness, n.